To empty the pool, you need to lower the water level by 150cm. since you can only lower it by 30cm every 2 hours (also same as 15 cm per hour), that means it will take you 10 hours.

150cm*(2 hours)/(30cm) = 150*(1/15) = 150/15 = 10.

6 a.m. + 10 hours = 4 p.m.

So the answer is C.) 4 p.m.

3 0

4 years ago

Patty made a banner that has an area of 112 square inches. The length and width of the banner are whole numbers. The length is 7

il63 [147K]

Answer:

The width of the banner is 4 inch and the length of the banner is 28 inch

Step-by-step explanation:

Given

Length is seven times its width

Let the width be "X", then length would be 7X

The banner is of rectangular shape.

Its area is 112 square inches

$X* 7X = 112\\7X^2 = 112\\X^2 = 16\\X = 4$

Hence, the width of the banner is 4 inch and the length of the banner is 4*7 i.2 28 inch

6 0

3 years ago